jQuery强制阻止文本行换行

HTML

<form id="form" name="form" method="post" action="#">
    <label>文本输入:</label><br>
    <p>
        <textarea name="input" cols="30" rows="3" id="input"></textarea><br>
    </p>
    <label>文本输出:</label><br>
    <p>
        <textarea name="output" cols="30" rows="1" id="output" readonly></textarea><br>
    </p>
    <p>
        <label>
            <input type="button" name="Submit" value="强制阻止文本换行" onclick="strReplace(input.value)">
        </label>
    </p>
</form>
					    

JS

function strReplace(str){
    var t="",len=0;
    t=str.replace(/\r\n/g,"\\n").replace(/\n/g,"");
    document.form.output.value=t;
}